help!!! ECM and tcm help

[Night rider 22]

So having a big problem here, my ECM went to crap the other day so I put in a spare one, truck ran good until I got to our local dealership, I had them reflash my truck to take a ppe tune out, when I left I noticed my truck slammed into gear pretty hard and won't shift out of 1st gear, I also don't have any trans temp,or indicator telling me what gear I am in. I tried plugging in my scan tool to read the codes but that won't connect at all. I took it back and they can't seem to figure it out, all they told me was my ECM and tcm won't connect

 

[Night rider 22]

Kinda lost at what to do, the dealer can't figure it out nor will they do anything about it

 

[McRat]

You need to find a Dmax hotrodder with EFILive experience in your area. Here's your next post:

"Ohio Member needs help!!!"

Obviously if you are bringing a tuned truck to a dealer, you need help.

NOTE: If you are banging gears after running a big tune, it will go away with a Tech 2 Relearn.

 

[Night rider 22]

The ECM was not tuned when I took It to a dealer I had a new one in the completely stock